//-----------------------------------------------------------------------
// <copyright file="OutParamAcceptanceTest.cs" company="NMock2">
//
//   http://www.sourceforge.net/projects/NMock2
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.
// </copyright>
// This is the easiest way to ignore StyleCop rules on this file, even if we shouldn't use this tag:
// <auto-generated />
//-----------------------------------------------------------------------
namespace NMock2.AcceptanceTests
{
    using NUnit.Framework;
    using NMock2.Actions;

    public interface IAdder 
    { 
        void Add(int a, int b, out int c); 
        int Add(int a, int b);
    }

    public abstract class Adder : IAdder
    {
        public abstract void Add(int a, int b, out int c);
        public abstract int Add(int a, int b);
    }

    [TestFixture]
    public class OutParamAcceptanceTest : AcceptanceTestBase
    {
        [Test]
        public void CanMockInAndOutParamOnInterfaceMethod()
        {
            AssertCanMockInAndOutParamOnMethod(Mocks.NewMock<IAdder>());
        }

        [Test, Class]
        public void CanMockInAndOutParamOnClassMethod()
        {
            AssertCanMockInAndOutParamOnMethod(Mocks.NewMock<Adder>());
        }

        private void AssertCanMockInAndOutParamOnMethod(IAdder adder)
        {
            Expect.Once.On(adder).Method("Add").With(3, 5, NMock2.Is.Out).Will(
                new SetNamedParameterAction("c", 8)
                );

            int outValue;
            adder.Add(3, 5, out outValue);
            Assert.AreEqual(8, outValue, "Outvalue was not set correctly.");
        }

        [Test]
        public void CanMockInAndOutParamWithReturnValueOnInterfaceMethod()
        {
            AssertCanMockInAndOutParamWithReturnValueOnMethod(Mocks.NewMock<IAdder>());
        }

        [Test, Class]
        public void CanMockInAndOutParamWithReturnValueOnClassMethod()
        {
            AssertCanMockInAndOutParamWithReturnValueOnMethod(Mocks.NewMock<Adder>());
        }

        private void AssertCanMockInAndOutParamWithReturnValueOnMethod(IAdder adder)
        {
            Expect.Once.On(adder).Method("Add").With(4, 7).Will(Return.Value(11));

            int c = adder.Add(4, 7);
            Assert.AreEqual(11, c, "Result was not set correctly.");
        }

        [Test]
        public void CanMockOutParameterUsingShortcutOnReturnClass()
        {
            IAdder adder = Mocks.NewMock<IAdder>();

            Expect.Once.On(adder).Method("Add").With(3, 5, NMock2.Is.Out).Will(Return.OutValue("c", 8));

            int outValue;
            adder.Add(3, 5, out outValue);
            Assert.AreEqual(8, outValue, "Outvalue was not set correctly.");
        }
    }
}